Question

At a specific instant, emission of radioactive compound is deflected in a magnetic field
i) electrons
ii) protons
iii) $H{e}^{2+}$
iv) neutrons.
The emission at the instant can be :

• A. (i),(ii),(iii)
• B. (i),(ii),(iii),(iv)
• C. (iv)
• D. (ii),(iii)

Answer 1

The correct option is A (i),(ii),(iii)

Only neutrons pass undeflected as they are electrically neutral. others show some deflection as they are following the rule $F=q(\overrightarrow{V}\times \overrightarrow{B}).$